欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  后端开发

php自定义session示例分享_PHP教程

程序员文章站 2022-05-27 11:35:46
...
下面为session类的代码
复制代码 代码如下:

class session
{
static function init()
{
session_set_save_handler(
array("session","open"),
array("session","close"),
array("session","read"),
array("session","write"),
array("session","destroy"),
array("session","gc")
);
}

static function open($save_path,$session_name)
{
echo "session opening!
";
/*global $db,$REMOTE_ADDR;
$rs = $db->Execute("select * from Sessions where SessionID='".session_id()."'");
$arry=$rs->FetchRow();
if( $rs && $arry)
{
$db->Execute("update Sessions set SessionLast=NOW() where SessionID='".session_id()."'");
}
else
{
$query = "insert into Sessions set SessionID='".session_id()."',SessionName='$REMOTE_ADDR',SessionLast='NOW()'";
//echo $query;
$db->Execute($query);
}*/
return true;
}
static function close()
{
return(true);
}

static function read($id)
{
echo "session reading now!
";
global $db;
return true;
$timenow = strftime("%Y-%m-%d %H:%M:%S", time());
$query = "select SessionData from Sessions where SessionID='$id' and SessionLast > '$timenow'";
$rs = $db->Execute($query);
if(list($SessionData) = $rs->FetchRow())
{
//echo $SessionData;
return $SessionData;
}
else
{
return false;
}
}

static function write($id,$sess_data)
{
echo "session writing now!
";
global $db;
$rs = $db->Execute("select SessionID from Sessions where SessionID='$id'");
$num = $rs->RecordCount();
$unix_time = time()+MY_SESS_TIME;
//echo MY_SESS_TIME;
$dateleft = strftime("%Y-%m-%d %H:%M:%S", $unix_time);
if($num {
$sql = "insert into Sessions set SessionData='$sess_data', SessionName='".$_SERVER["REMOTE_ADDR"]."', SessionLast='$dateleft', SessionID='".session_id()."'";
}
else
{
$sql = "update Sessions set SessionData='$sess_data', SessionName='".$_SERVER["REMOTE_ADDR"]."', SessionLast='$dateleft' where SessionID='$id'";
}
$db->Execute($sql);
}

static function destroy($id)
{
echo "session destroying now!
";
global $db;
$sql = "DELETE FROM Sessions WHERE `SessionID` = '$id'";
$rs = $db->Execute($sql);
return $rs;
// $sess_file = "$sess_save_path/sess_$id";
//return(@unlink($sess_file));
}

/*********************************************
* WARNING - You will need to implement some *
* sort of garbage collection routine here. *
*********************************************/
static function gc($maxlifetime)
{
echo "session maxlifetime now!
";
global $db;
$timenow = strftime("%Y-%m-%d %H:%M:%S", time());
$sql = "DELETE FROM `$table_sessions` WHERE `SessionLast` return $sess_db->Execute($sql);
//echo "now gc!
";
return true;
}
// proceed to use sessions normally
}

使用方法

复制代码 代码如下:

include("session.class.php");
session::init();
session_start();
define("MY_SESS_TIME", 3600); //SESSION 生存时长
$_SESSION["test"] = "abcdef";

www.bkjia.comtruehttp://www.bkjia.com/PHPjc/759332.htmlTechArticle下面为session类的代码 复制代码 代码如下: ?php class session { static function init() { session_set_save_handler( array("session","open"), array("session","close"), a...
相关标签: php session